Roller-lap stop-motion



J. AND 0. HEYWOOD. ROLLER LAP STOP MOTION.

APPLICATION FILED 001 .30, 1919. 1,342,713.

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Y K a, c a C rr a Patented J 11116 8, 1920.

umrso STATES I PATENT OFFICE.

JAMES HEYWOOD, OF MANCHESTER, AND CHARLES HEYWOOD, OF STOCKPORT,

- ENGLAND.

ROLLER-LAP STOP-MOTION.

Application filed October 30, 1919.

To all whom it may concern:

Be it known that we, Janus HEYwooD and GnnnLns Hnrwoon, subjects of the King of Great Britain and Ireland, and residents of Manchester, in the county of Lancaster, and Stockport, in the county of Chester, England, respectively, have invented certain Improvements in Roller-Lap Stop-Motions, of which the following is a specification.

This invention relates to improvements in stop motions for preventing roller laps in drawing frames, lap forming machines or the like used in the preparation of fibers for spinning and has particular reference to that class of stop motion wherein the movement of the top roller consequent upon a roller lap is utilized to effect the stopping of the frame.

Prior to'the date of our invention so far as we are aware all stop motions for the purposes referred to have been operated by means actually connected to the top roller or located above the top roller so that when the latter was lifted in consequence of a roller lap, mechanism intervening between the roller and the stop motion of the machine caused the latter to be stopped until the defect was remedied. A great objection to the prior arrangement referredto was that in case of a roller lap the top roller could not be removed without disturbing or taking away or disarranging some portion of the stop motion mechanism. Our invention aims at remedying the defect referred to and consists in tongues or steps disposed between the journals of the top and bottom drawing or calendering rollers so as to follow the top roller when such roller is displaced bv a roller lap, means for adjustably connecting the tongues or steps together, a double-armed pivoted lever located between the tongue connecting means and the usual revolving spider or oscillating shaft of the usual broken lap or empty lap bobbin stop motion and means for adjusting and setting the various parts.

Our invention will be fully described with reference to the accompanying drawings in which:

Figure 1, is a transverse section through the drawing rollers of a ribbon lap ma- Specification of Letters Patent.

Patented June 8, 1920.

Serial No. 334,600.

chine showing the application of our invention thereto.

Fig. 2, front elevation of same partly in section, and

Fig. 3, front elevation of the table calender rollers of a ribbon lap machine showing the application of our invention to such rollers.

In carryin out our invention and referring particularly to Figs. 1 and 2, H indicates the roller beam for supporting the stands S in which the drawing rollers are journaled, T the top drawing rollers and R the bottom drawing rollers. lhe top drawing rollers, as is well known are free to rise in case a roller lap occurs in accordance with our invention we employ two tongues or steps A forming part of the upright rods A, which pass under the journals 6 of the top drawing rollers T and are kept lightly in following contact with said journals so as to rise with them as a roller lap occurs. The two rods a are adjustably connected at their lower ends, as, for instance, by screwed portions 0 and nuts (Z, with a cross bar B, freely slidable vertically in forked brackets a secured to the fixed bracket c'by a screw f or bolt. The same bracket 6 has an eX- tending arm 9 forming a bearing for the pivot pin it of a double'armed lever C, the short arm 2' of which passes under the bar B, while the long arm j extends toward the rotating spider shaft E upon which is fixed the usual spiders 7' and has pivoted to it a tail piece D. Bar B is fitted with a screw and nut X for adjusting and setting the position of the tail piece D with relation to the spider j and the tongue A.

During the normal running of the machine, the parts occupy the position indicated in Figs. 1 and 2. lVhen, however, a roller lap occurs either on the bottom or top roller, roller T rises and is followed by the tongues A due to the overhanging weight of arm j of lever C, said arm simultaneously descending so as to bring the tail piece B into contact with spider 7' which forms part of the usual broken lap or empty lap bobbin stop motion connected with the usual strap fork retaining means, moving the latter and shifting the driving belt from the fast to the loose pulley, so stopping the machine. Vhen the roller lap is cleared the parts return to normal position and the machine is started again. The tail piece D may be brought as described into the path of an oscillating shaft with the same result as described.

Fig. 3, shows the application of our invention to the table calender rollers of a ribbon lap machine, in which T is the upper and R the lower calender roller. Herein the tongues A rest below the bearing blocks m of the roller T 2 and form part of rods a adjustably connected in a somewhat similar manner to that previously described,

with bar B guided vertically in fixed brackets C pivoted at a, carrying an adjusting screw and nut X for the same purpose already described. Lever J is coupled by link K to one arm 0 of a double-armed lever O pivoted at p and carrying at the end of its other arm 9 a tail piece D adjacent to the spider shaft E and spider j The motion acts in substantially the same manner as previously described in connection with Figs. 1 and 2.

In both the arrangements described the top roller is quite free to be removed from its guides without disturbing the stop motion mechanism.

Below the bar B is a lever J What I claim and desire to secure by Letters Patent is 1. The combination, with a drawing roller having journals at its ends, of vertical rods provided with tongues at their upper ends which project under the said journals, a crossbar secured to the lower parts of the said rods, a guiding device for the crossbar, and a lever for controlling a stop motion operatively connected with the middle part of the crossbar.

2. The combination, with a drawing roller having journals at its ends, of vertical rods provided with tongues at their upper ends which project under the said journals, a crossbar secured to the lower parts of the said rods, a guiding device for the crossbar, a pivoted lever having a relatively short end portion which projects under the middle part of the said crossbar, and a revoluble spider for controlling a stop motion arranged in the path of the long end portion of the said lever.

In testimony we have hereunto set our hands in the presence of two witnesses.

JAMES HEYWOOD. CHARLES HEYWOOD.

Vitnesses:

MARGARET E. RAMSBOTTOM, WM. HALL. 

